KR20040050646A - Trommel Type Cleaner for Waste Mulch Plastic Film - Google Patents

Abstract

PURPOSE: An apparatus for pre-treating a trommel type waste agricultural mulching vinyl is provided to pre-treat the waste mulching vinyl collected for recycling a waste agricultural mulching vinyl. CONSTITUTION: The apparatus for pre-treating the trommel type waste agricultural mulching vinyl comprises a trommel drum(100) having a trommel(110) and an upper ring(120), a central ring(130) and a lower ring(140) at the both ends and in the middle of the trommel; a drive part composed of a shaft(210), a scraper drive part(220) for rotating the shaft and a trommel drive part for rotating the trommel drum; a scraper part(300) composed of an installation stand and scrapers; and a supporting part(400) composed of a dashboard part(410) and a frame part(420).

Description

Trommel Type Agricultural Mulching Waste Vinyl Pretreatment Equipment {Trommel Type Cleaner for Waste Mulch Plastic Film}

The present invention relates to a trommel-type agricultural mulching waste vinyl pretreatment apparatus which automatically performs a process of separating and drying foreign matters such as soil, which is attached to the mulching waste vinyl collected in order to recycle agricultural mulching waste vinyl.

Since the creation of the first synthetic resin, the phenolic resin in 1909, the plastics industry has developed remarkably with the development of the petroleum industry, and plastics are now an indispensable material in our lives.

However, as environmental pollution became a global concern, the problem of disposal of waste plastics became serious enough that the solution could not be delayed anymore. The reason for this is that plastics do not take up a lot of volume due to their low density when they are landfilled, and they take a long time to decompose, which increases the amount of landfills. Because it is.

As with all other waste plastics, the best disposal for agricultural mulching waste vinyl is recycling. However, since agricultural mulching waste vinyl is used in direct contact with soil, it is very difficult to remove and recycle it physically because about 85% is contaminated with foreign substances such as soil and moisture. Therefore, Korea Resource Reclamation Corporation cleans it in the water tank after pretreatment such as shredding, but it costs about 150,000 won to recycle 1 ton of waste vinyl due to the excessive cost of the process compared to the value of the regenerated product. Despite the deficit, stocks are still growing. On the other hand, if it is not actively collected and disposed of, it will be obvious that the rural environment will be ravaged by waste vinyl, which is generated approximately 290,000 tons annually nationwide.

<Table 1> is the pure quantity of various agricultural vinyls used in 1998, and the actual crude amount should include foreign substances such as soil in these amounts.

Therefore, it is possible to manufacture civil materials such as sewage pipes, artificial reefs, or contain sufficient calories through simple pretreatment to remove some foreign substances and water than the regeneration process by wet washing which is expensive for the treatment of mulching waste vinyl. The alternatives to solid recycled fuel (RDF) that make use of the properties of polyethylene (PE) are alternatively economically persuasive in terms of restocking. Therefore, it is necessary to economically pretreat a large amount of mulching waste vinyl by developing an automated device that is currently being pretreated depending on manual labor to produce them.

<Table 1> Estimated annual consumption of agricultural waste vinyl (as of 1999)

(Unit: tons,%)

division system LDPE HDPE PVC EVA Quantity Share Quantity Share Quantity Share Quantity Share Quantity Share system 98,134 100 63,289 100 28,842 100 7,920 100 8,083 100 sub Total 7,834 8.0 5,628 8.9 505 2.7 672 8.5 1,029 12.7 Seoul 896 0.9 845 1.3 35 0.2 16 0.2 - - Busan 2,250 2.3 913 1.4 80 0.4 304 3.8 953 11.8 Dae-gu 1,658 1.7 1,214 1.9 109 0.6 263 3.3 72 0.9 Incheon 564 0.6 443 0.7 97 0.5 23 0.3 One 0.0 Gwangju 1,683 1.7 1,522 2.4 100 0.5 61 0.8 - - Daejeon 330 0.3 291 0.5 31 0.2 5 0.1 3 0.0 Ulsan 453 0.5 400 0.6 53 0.3 - - - - sub Total 90,300 92.0 57,661 91.1 18,337 97.3 7,248 91.5 7,054 97.3 Game 9,649 9.8 7,443 11.8 1,384 7.3 814 10.3 8 0.1 Kang Yuan 3,140 3.2 2,035 3.2 1,043 5.5 40 0.5 22 0.3 Chungbuk 4,466 4.6 1,519 2.4 2,593 13.8 311 3.9 43 0.5 Chungnam 11,592 11.8 8,979 14.2 2,522 13.4 25 0.3 66 0.8 Former north 8,890 9.1 4,457 7.0 2,393 12.7 1,056 13.3 984 12.2 Ex-nam 13,107 13.4 9,255 14.6 2,410 12.8 441 5.6 1,001 12.4 Gyeongbuk 18,903 19.3 10,812 17.1 4,585 24.3 1,266 16.0 2,240 27.7 Gyeongnam 19,187 19.6 11,850 18.7 1,352 7.2 3,295 41.6 2,690 33.3 Jeju 1,366 1.4 1,311 2.1 55 0.3 - - - -

Source) Survey Report on Agricultural Wastewater Generation, Korea Resources Recycling Corporation (2000)

As long as the pre-treatment of mulching waste vinyl is effective, it can be used for various purposes as mentioned above, or it can be efficiently and economically processed by reducing the load on processes such as washing, even if it is used for various purposes. The impact is not likely to be small.

<Table 2> Three Components of Agricultural Mulching Waste Vinyl

(unit ; %)

area Establishment HDPE LDPE moisture Foreign substance PE moisture Foreign substance PE Gyeongnam Area Masan Office 41.8 48.7 9.5 39.3 43.1 17.5 Changnyeong Office 40.2 49.4 10.4 39.4 42.3 18.3 Ulsan Office 43.3 45.5 11.2 - - - Average 41.8 47.9 10.4 39.4 42.7 17.9 Gyeongbuk area Chilgok Office 39.1 49.3 11.6 42.5 38.2 19.3 Yeongcheon Office 40.2 49.3 10.5 37.3 45.2 17.5 Gumi Office 46.4 43.8 9.9 36.4 43.6 20.1 Average 41.9 47.4 10.7 38.8 42.3 18.9 Chungbuk Area Cheongwon Office 48.0 45.5 9.5 43.1 37.2 19.7 Cheongju Office 47.2 43.3 9.5 42.6 39.8 17.5 Okcheon Office 48.2 40.3 11.5 33.4 45.1 21.5 Average 46.8 43.0 10.2 39.7 40.7 19.6 Jeonnam area Boseong Office 38.6 49.3 12.1 45.4 37.8 16.8 Gwangju Western Office - - - 36.4 43.1 20.5 Hampyeong Office - - - 33.6 45.5 20.9 Average 38.6 49.3 12.1 38.5 42.2 19.4 National average 42.3 46.9 10.8 39.1 42.0 19.0

Data) A study on the development of agricultural mulching waste vinyl dry process, Korea Resource Reclamation Corporation (1996)

As mentioned above, about 290,000 tons of agricultural mulching waste vinyl is generated annually, and about 30% of the generated amount is collected by Korea Resources Reclamation Corporation, and the amount collected by the private sector accounts for 8.7% of the total generation. .

About 33% of the waste vinyl recovered by the reclamation works is supplied to the private sector through the process of sorting, etc., 27% of the amount is processed in its own regeneration plant and about 34,000 tons, about 40%. The degree is not handled and is accumulated every year.

Among them, the amount of mulching waste vinyl is about 210,000 tons per year, 32% of which is recovered by regeneration works, and almost no amount is recovered by the private sector. About 36% of construction collections are processed in the regeneration and processing facilities owned by the construction, and some are supplied to the private sector through simple screening, but the demand is not high enough, and about 20,000 tons are accumulated annually.

The waste vinyl for house generates about 80,000 tons per year, and a large part of the total amount is collected by the private sector, which is recycled relatively easily due to the slight pollution, so it is not necessary to pre-treat and can easily recycle materials. .

The characteristics of mulching waste vinyl vary greatly depending on the type of vinyl (HDPE and LDPE), region, and time point. However, the characteristics of the mulching waste vinyl are shown in <Table 2>.

As shown in <Table 2>, the mulching waste vinyl has only 10% of its pure components in HDPE, and about 19% in LDPE, which is within 15% on average.

Particularly, when the soil is yellow soil, it is very difficult to remove it, so there is considerable difficulty in pretreatment of mulching waste vinyl. Therefore, securing the pretreatment technology is more important than the molding technique even in the case of regeneration fuel (RDF).

As the oil resources currently on earth are expected to be exhausted by 2038, most countries are responding by maximizing recycling. In Korea, various systems and technologies are being developed or introduced for recycling. In particular, when plastics such as vinyls obtained from petroleum resources are recycled, it is advantageous because it can save not only raw materials but also energy required from purification to products.

There are hundreds of companies in Korea that use waste vinyl to manufacture industrial materials such as sewage pipes, earthen boards, household goods such as ham paper, septic tanks, and aeration tank microbial carriers.

In addition, Korea, which is an energy-deficient country, is focusing on developing alternative energy. Therefore, attention and efforts are focused on the development of renewable fuels (RDF) made from waste. Recycling fuel (RDF) can be used as an energy source for landfilling and incineration, so that in addition to preserving new natural resources, it can alleviate severe landfill problems and reduce the environmental load caused by incineration. Therefore, since most of the agricultural mulching waste vinyl is composed of carbon and hydrogen, it can be a very suitable binder and caloric aid when used as an alternative energy such as renewable fuel (RDF).

However, the mulching waste vinyl can not be used as it is, pre-treatment, but until now, no suitable device has been developed, so as to rely only on manual work as described above.

In case of pretreatment of mulching waste vinyl by hand (手 作 수), it has been processed about 200 kg per day even for skilled workers due to the nature of long twisting and heavily contaminated mulching waste vinyl. In particular, mulching waste vinyl has a high adhesion to the wet soil of the soil, even if pretreatment by manual diarrhea had a limit to remove the contaminants.

As described above, the necessity of equipment to replace manual work in pretreatment of mulching waste vinyl has been required in the past, but has not been solved until now. In order to provide a pretreatment device that automatically separates and removes foreign matter such as soil attached to the mulching waste vinyl, the mulching waste vinyl is collected and a plurality of air distribution holes are formed to dry the wet mulching waste vinyl. To provide a trommel-type pretreatment apparatus using a trommel that is a cylindrical network has its characteristics.

1 is a perspective view of a mulching waste vinyl trommel-type pretreatment apparatus according to the present invention

2 is a front view of a mulching waste vinyl trommel type pretreatment apparatus according to the present invention.

Figure 3 is a side view of the mulching waste vinyl trommel pretreatment apparatus according to the present invention

4 is a partial view of the device according to the invention.

*** Description of the main parts of the drawings ***

100: trommel drum 110: trommel

200: drive unit 210: shaft 220: hair drive unit 230: trommel drive unit

300: hair part 311: mounting table 312: hair plate

400: support portion 410: mudguard portion 420: frame portion

The present invention is a process for separating and drying the crushed agricultural mulching waste vinyl in the foreign body as previously described, the part previously performed by workers by hand with a sickle, etc. Trommel-type mulching according to the present invention shown in Figures 1 to 3 The waste vinyl pretreatment was performed.

Trommel-type agricultural mulching waste vinyl pretreatment apparatus according to the present invention is composed of a drive motor and a shaft traversed the inner center of the trommel drum 100 and the trommel drum 100, the network is formed in a cylindrical shape and inclined as a whole. Hair is assembled to the driving unit 200 and the shaft of the driving unit 200 to rotate the trommel drum 100, and the hair to shake off the foreign substances such as dirt attached to the mulching waste vinyl put into the trommel drum 100 inside Opening part 300 and the lower side of the trommel drum 100 is composed of a support 400 for supporting the components.

The trommel drum 100 is a top of the trommel 110 and trommel 110, the upper and lower surfaces of the rhombic wire mesh or other reticular forms a cylindrical shape and the upper and lower surfaces are open as shown in FIG. The upper ring 120 and the middle ring 130 and the lower ring 140 are formed in a ring-shaped frame at the middle and bottom of each. The outer surface of the intermediate ring 130 is formed with a toothed drive gear 231 of the trommel driving unit 230, which will be described later, the length of the inner circumferential surface of the trommel 110, the cylindrical cylinder A triangular jaw 111 formed of a plate-shaped body having a triangular thickness section perpendicular to the inner circumferential surface thereof is formed, and the triangular jaw 111 is formed by a predetermined number to be stored therein when the trommel 110 is rotated. The mulching waste vinyl is lifted up from the bottom of the trommel 110 to pull up to the top function to spray.

The drive unit 200 is configured to rotate the trommel drum 100 and the hair part 300 to be described later, the shaft 210 and the upper end of the shaft 210 formed through the center of the trommel 110 It consists of a hair drive unit 220 for rotating the shaft 210 and a trommel driving unit 230 for rotating the trommel (110).

The hair drive unit 220 penetrates the cylindrical trommel drum 100 in the longitudinal direction and has an inclination angle to support the shaft 210 and the shaft 210 of the rod-shaped body installed and supported by the support 400 described later. A flywheel 221 and a cylindrical wheel 223 formed on the driving shaft of the motor 222 and the furry driving motor 222 installed at one upper edge of the trommel drum 100 formed at the bottom of the flywheel 223 and the flywheel 221 is formed between the power transmission belt 224 to transfer power.

The trommel driving unit 230 is engaged between the drive gear 231 and the drive gear 231 and the motive gear 233 formed on the outer peripheral surface of the outer surface of the intermediate ring 130 of the trommel drum 100 A driven gear 232 for transmitting the driven wheel 233 formed on the same axis as the driven gear 232, a trommel driving motor 234, and a driving wheel 235 and a driven wheel 233 formed on the drive shaft of the motor; ) And a power transmission belt 236 for interlocking the driving wheel 235. Consists of a motive gear 233 formed on the drive shaft of the drive motor 224, the trommel driving unit 230 is formed on the support 400 on the lower side of the middle ring 130 of the trommel drum 100 .

The fur part 300 is formed over an approximately 70% of the length on the upper side of the shaft 210 in which a plurality of fur parts 310 are inclined, the fur part 310 is fixed to the outer peripheral surface of the shaft 210 It consists of a mounting plate 311 made of a plate-like body and a hair plate 312 which is an elongated elliptical plate-shaped body having a predetermined width and length. The mounting bracket 311 is fixed to the shaft 210, so that the mounting bracket 311 is formed slightly opposite to the plurality of mounting brackets 311 are formed in a spiral as a whole, hair plate 312 on the mounting bracket 311 The one end side is rotatably installed.

The supporter 400 is formed while supporting the driving unit 200 and the trommel drum 100 as shown in FIGS. 1 and 2 before the trommel 110 at the lower side of the trommel drum 100. The fender portion 410 is formed along the length and the frame portion 420 is formed by weaving the beams of the wooden beams formed while supporting the lower side of the fender portion 410. The fender portion 410 is provided with two fender plates 411 and 412 having front and rear surfaces, an upper surface and a bottom surface, and both sides of the plate surface, and a groove is formed in an overall "U" shape. And be inclined as a whole to allow the trombell drum 100 to be received in the groove, and the upper beam 413 and the lower beams are respectively crossed across the middle height and the lower end of the open front rear surface of the fender 410. Beams 414 are each formed in a pair. The shaft 210 of the driving unit 200 is rotatably fixed to the upper beam 413.

The pretreatment process of mulching waste vinyl by the trommel-type agricultural mulching waste vinyl pretreatment apparatus according to the present invention having the above-described configuration is as follows.

Before treating with the trommel type mulching waste vinyl pretreatment apparatus of the present invention, it is necessary to crush the mulching waste vinyl first. Since mulching waste vinyl has a length of several tens of meters and is entangled with each other, it is difficult to move it as it is to put it into the process. do. However, in the present invention, since the crushing is a general matter, the foreign matter separation and drying by the trommel-type 'pretreatment apparatus' will be determined as the configuration of the invention.

The vinyl passed through the crusher is then trommel of a large cylindrical wire mesh of about 150 mm in diameter and about 3,500 mm in length at low speed (about 8 RPM) of the trommel drum 100 of the trommel type pretreatment apparatus according to the present invention. 110; high-speed rotation (about 250 in the shaft 210 of the drive unit installed in the trommel 110 while passing through the process of being introduced into the upper opening of the 30-50 mm size rhombus) and discharged through the lower opening; RPM) and blows the air into the pretreatment apparatus of the present invention with the impact and blower of the blade-like hairboard 312 is forced through the air distribution port formed in the trommel (1100) of the pretreatment apparatus according to the present invention It is injected into the drying and debris removal at the same time. The trommel drum 100 may be rotated alternately in both directions, but rotating only in one direction did not adversely affect the flowability or workability of the vinyls, and when rotated in the counterclockwise direction, at 7 o'clock and 9 o'clock. If air was blown at 1 o'clock, foreign matter removal and drying effect was further promoted (blower not shown). When the triangular jaw 111 having a height of 120 mm is installed in three portions of the cylindrical trommel drum 100, the vinyls are lifted from a low position to a relatively high position, and the vinyls falling from the high position rotate inwardly. They are severely collided with each other and the foreign matter is separated and dried. In order for the injected vinyl to be naturally discharged, the inclination of the trommel drum 100 should be set. The inclination may be adjusted according to a desired residence time, but for most vinyls, 12.7 ^o was appropriate.

When passed through the trommel drum 100 is less than 20% of the waste vinyl is pre-treated with a purity of about 50%, the earth and sand is about 30% and the remaining water is about 20%. If the diameter of the trommel drum 100 or the trommel 110 perforated in a steel sheet rather than a wire mesh is used, it should be noted that not only the drying and separation effects are poor, but also the vinyl is easily twisted into a long bundle state. do. If it is necessary to keep the screen scale of the trommel 110 smaller, it is possible to use a smaller scale removable removable mesh net.

TABLE 3 Average Properties of Dry Washed Vinyl Obtained in the Test

unit Item Value Remarks PE pure ingredients % 44.5 to 57.5 moisture % 13.0-23.5 Burning loss % 16.1-34.4 Earth and sand ingredients (650 ^o C, 3 hours) High calorific value Kcal / kg 5,965 Chlorine Content ppm 287

Of course, there is a way to further increase the purity of PE, but considering the compact size for the mobile operation mounted on the trailer, the economical efficiency of processing and the purity of the PE according to the use, it would be advantageous to maintain the device to the extent described above. . Of course, depending on the type, contaminated state and quantity of the mulching waste vinyl to be injected, and the external climatic conditions, the processing conditions may be very different. As shown in Table 3. For reference, there was no abnormality in moldability as a result of using the pretreated vinyl to produce civil engineering materials such as laminated corrugated sewage pipes and conduits for agricultural waterways.

It was found that the specifications and operating conditions of the pretreatment trommel were very important for the optimum treatment efficiency during the experimental operation period of about 18 months. <Table 4> presents the equipment and operating conditions for optimal operation.

<Table 4> Optimal operating conditions of Trommel

unit Optimal value Remarks Trommel length m 3.5 to 4.0 Too long to blow after drying Trommel diameter m 1.4 to 1.6 Hairboard length cm 45 The shape of a woolen plate - Oval Round corners Trommel Incline ^o 12.7 Too big to eject quickly Trommel rotation direction - Counterclockwise OK in opposite direction Fur direction - Same direction as Trommel Trommel rotation speed RPM 8 to 9 Fur rotation speed RPM 200 to 300 Number of fur dog 20-30 Hair gap cm Less than 5 If it's too wide, the vinyl wraps around Air blowing effect - Very effective Air blowing angle City direction 7, 9 Two places Trommel screen neck size cm 1.0 × 1.0 to 3.0 × 5.0 Nylon net can be changed depending on the plastic input Appropriate size of the input waste vinyl cm 50 × 50 or less

In the present invention, the hair 310 is not fixed, but after fixing the mounting table 311 to the shaft 210, the hair plate 312 hinge assembly to the shaft 210 when the shaft 210 is rotated at high speed by a centrifugal force This unfolded, so that large and solid foreign matter can be rolled back even when mixed with mulching waste vinyl, so that the device protection is advantageous, and the reticular body (net) constituting the trommel 110 in the trommel drum 100 A hook (hook) was installed on the screen that is the outer wall of Trommel 110 so that it can be easily detached.

The pre-treated waste vinyl drops to its own weight to the opened lower side of the trommel drum 100 and is automatically stored. In this case, 3 people can handle 10 tons of water by 40 workers in 8 hours. Will be.

<Example>

The present invention is a pre-treatment device that is a trommel-type dry separator according to the present invention by shredding waste vinyl used for mulching in rural areas to about 30-80 cm using a shredder used by the Korea Resources Reclamation Corporation It is possible to reduce the load of the cleaning process by separating various substances and drying water by using to manufacture various civil materials, directly used to manufacture renewable fuel (RDF), or by using the existing wet or dry cleaning process. .

Therefore, the treatment of mulching waste vinyl by using the apparatus of the present invention has the advantage that it is possible to process the amount of manual work by a large number of workers by performing a pretreatment simply and economically.

According to this experiment, the mulching waste vinyl used is affected by the treatment efficiency depending on its type and contamination condition, but in the case of the average pollution degree, the processed product is hardly worse than by manual labor.

In Korea, there is no standard value of physical properties and properties as raw materials for physical regeneration of waste vinyl recycled products. However, there is a part about regenerative products by physical strength and ash. Therefore, the recycling of mulching waste vinyl will be very high even if only PE waste vinyl manufactured using the present pretreatment apparatus is used where it meets these standards.

In particular, in case of energy shortages, the value of bituminous coal is greatly increased due to the partial or total use of renewable fuels (RDF). ), Renewable fuels would be a very suitable alternative and could extend to not only physical recycling but also energy recycling.

In addition, mulching waste vinyl has an advantage that it can be stably supplied because the amount of annual generation is very large and also regionally wide.

Mulching waste vinyl pretreatment apparatus according to the present invention having the configuration and action as described above allows the regeneration of the mulching waste vinyl in the pre-treatment stage to allow the regeneration of the material into various civil materials, etc. ) It can be used for the same application and it also has the effect of reducing the load of the cleaning device in the existing wet or dry cleaning process.

In other words, it is possible to pre-process agricultural waste plastics, which are generated and accumulated in rural areas by 290,000 tons per year, without using water. In this case, it can be replaced by 3 persons, which reduces economic manpower in the post-industrial society, and it is economical. The pretreatment products can be used directly for construction materials, RDF manufacturing, etc., and can use useful oil resources. When applied to the process or dry process, the processing cost is reduced by drastically reducing the load required for washing in the process, and when it is mounted on a trailer, etc., and it is configured as a mobile, it can be processed on site by visiting rural areas of the country. Contribute to the improvement, as well as applying the techniques derived from this process. It can also be used for the separation and drying equipment of cotton and other wastes, which can be extended to the field adaptability of the trommel type separate drying equipment to promote waste recycling, ultimately saving the environment, protecting the environment through recycling, and securing stable recycled materials. It will also contribute to the national economy.

Claims (3)

In the apparatus for removing foreign matters such as soil attached to the waste vinyl after cutting the collected agricultural waste vinyl with a cutter, the upper and lower openings are inclined and installed obliquely and the cylindrical trommel 110 and trommel so as to pass the wind well. A trommel drum 100 having a rotatable configuration and an upper ring 120, a middle ring 130, and a lower ring 140 each having a ring shape at both ends and a middle thereof; The shaft 210 formed on the central axis of the trommel drum 100 and the lower end of the shaft 210 are configured to rotate the hair drive unit 220 and the trommel drum 100 to rotate the shaft 210. A driving unit 200 including a Rommel driving unit 230; On the shaft 210, a plurality of hairs 310 made of a plate-shaped mounting plate 311 which is connected to the upper end of the mounting body and a plate-shaped hair plate 312, which is connected to the top of the mounting body, are fixed on the shaft 210. Adjacent hairs 310 are alternately composed of hairs 300; The fenders 410 formed by wrapping both sides of the trommel 110 along the entire length on the bottom side of the trommel drum 100 and the bottom of the fenders 410 are formed. Agricultural mulching waste vinyl trommel-type pre-treatment device consisting of a support portion 400 consisting of a frame portion 420 formed by interwoven beams. The trommel-type agricultural mulching waste vinyl pretreatment device according to claim 1, wherein a triangular jaw (111) formed of a plate-shaped body having a triangular cross section perpendicular to the inner circumferential surface of the trommel (110) is formed. According to claim 1, the fender portion 410 is formed with a groove in the shape of a substantially "U" two fender plate (411, 412) of the front and rear surfaces and the bottom surface is open and both sides of the plate surface Trommel-type agricultural mulching waste vinyl pre-treatment device is installed on the frame portion 420 formed so as to form a bridge to be woven in the overall inclined to accommodate the trombell drum 100 in the groove.